network collisions, only with FreeBSD

[Ondrej Suchy]

>>The network is *very* slow via xl0 interface. scp'ing file over
>>100mbit network from a host just one hop away, I get around 10 kbps
>>(!). Changing mediaopt from autoselect (=> full-duplex) to half-duplex
>>I get slightly better results, but still very poor. Over fxp0 it is much
>>better, but still not perfect.
> 
> Try forcing full duplex instead of letting autoselect pick it?

Doesn't help.

I even moved the NIC to a different slot. Doesn't help either.

   Ondrej